NUCC taxonomy code
320800000X - Mental Illness Community Based Residential Treatment Facility
320800000X is the NUCC provider taxonomy code for Mental Illness Community Based Residential Treatment Facility (organizations). 5,856 providers in our latest NPPES snapshot list it as their primary taxonomy.
5,856
providers · primary taxonomy
Code breakdown
Taxonomy code 320800000X
Display name Mental Illness Community Based Residential Treatment Facility
Grouping Residential Treatment Facilities
Classification Community Based Residential Treatment Facility, Mental Illness
Section Non-Individual
Definition
A home-like residential facility providing psychiatric treatment and psycho/social rehabilitative services to individuals diagnosed with mental illness.
Definition from the NUCC Health Care Provider Taxonomy code set.
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Related taxonomy codes
320900000X Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility 323P00000X Psychiatric Residential Treatment Facility 322D00000X Emotionally Disturbed Childrens' Residential Treatment Facility 320600000X Intellectual and/or Developmental Disabilities Residential Treatment Facility 320700000X Physical Disabilities Residential Treatment Facility 324500000X Substance Abuse Rehabilitation Facility 3245S0500X Children's Substance Abuse Rehabilitation Facility (Substance Abuse Rehabilitation Facility)
Frequently asked questions
What does taxonomy code 320800000X mean?
320800000X is the NUCC Health Care Provider Taxonomy code for Mental Illness Community Based Residential Treatment Facility in the "Residential Treatment Facilities" grouping. It classifies organizations and non-individual providers.
Where is the taxonomy code used?
Providers select a taxonomy code when applying for an NPI, and it appears on insurance claims (CMS-1500 box 33b / 837 electronic claims) to identify the provider's classification. Payers may require the taxonomy that matches your credential and license.
How do I find providers with taxonomy 320800000X?
Browse the Community Based Residential Treatment Facility, Mental Illness directory, or use the NPI search and filter by state.
Source: CMS NPPES (public data). Snapshot 2026-07-13.